{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-121823", "assignerOrgId": "657f3255-0560-4aed-82e4-7f579ec6acfb", "state": "PUBLISHED", "assignerShortName": "LY-Corporation", "dateReserved": "2026-11-04T05:50:04.722Z", "datePublished": "2026-11-06T07:46:56.347Z", "dateUpdated": "2026-11-06T07:46:56.347Z"}, "containers": {"cna": {"affected": [{"vendor": "LY Corporation", "product": "Armeria", "defaultStatus": "affected", "versions": [{"version": "1.43.0", "status": "unaffected", "versionType": "custom", "lessThan": "*"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-647"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability has been identified in armeria versions prior to 1.43.0, where inconsistent request path normalization can allow unauthenticated attackers to bypass path-based access controls and access protected resources."}], "references": [{"url": "https://line.github.io/security-advisory-blog/CVE-2026-121823/"}, {"url": "https://github.com/line/armeria/security/advisories/GHSA-xqhm-4ph4-423v"}], "metrics": [{"cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N", "baseScore": 8.7, "baseSeverity": "HIGH"}}], "providerMetadata": {"orgId": "657f3255-0560-4aed-82e4-7f579ec6acfb", "shortName": "LY-Corporation", "dateUpdated": "2026-11-06T07:46:56.347Z"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "affected", "product": "Armeria", "vendor": "LY Corporation", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1.43.0", "versionType": "custom"}]}], "source": "dl_cve@linecorp.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability has been identified in armeria versions prior to 1.43.0, where inconsistent request path normalization can allow unauthenticated attackers to bypass path-based access controls and access protected resources."}], "id": "CVE-2026-121823", "lastModified": "2026-11-06T08:17:20.850", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "dl_cve@linecorp.com", "type": "Secondary"}]}, "published": "2026-11-06T08:17:20.850", "references": [{"source": "dl_cve@linecorp.com", "url": "https://github.com/line/armeria/security/advisories/GHSA-xqhm-4ph4-423v"}, {"source": "dl_cve@linecorp.com", "url": "https://line.github.io/security-advisory-blog/CVE-2026-121823/"}], "sourceIdentifier": "dl_cve@linecorp.com", "vulnStatus": "Received"}

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